| Parameter | Details |
|---|---|
| Product Name | Engine Oil Pressure Sensor |
| Part Number | 65.27441-7009 |
| Compatible Brands | Doosan |
| Compatible Engine | DL08 (Doosan 8.0L Diesel Engine) |
| Material | Iron + Rubber + Brass/Copper |
| Packing | PP bag inside, carton box outside |
| Payment Terms | Western Union, L/C, T/T, MoneyGram, D/A, D/P |
| MOQ | Acceptable trial order (1 piece accepted) |
| Shipping Mode | By air, by sea, by express (FedEx, UPS, DHL, TNT, etc.) |
| Place of Origin | Guangdong, China |
| Brand Name | COGENG |
| Certification | ISO9001 |
| Stock Status | ✅ In Stock |
| Supply Capacity | 500 PCS |
The COGENG 65.27441-7009 Engine Oil Pressure Sensor is a high-precision, direct OEM replacement sensor specifically designed for the Doosan DL08 diesel engine. The DL08 is an 8.0-liter, 6-cylinder turbocharged diesel engine widely used in:
Doosan heavy equipment – Excavators, wheel loaders, forklifts
Doosan commercial vehicles – Trucks and buses
Industrial applications – Generators, compressors, material handling
This critical engine component continuously monitors engine oil pressure and transmits real-time signals to the ECU (Engine Control Unit) and/or dashboard gauge, ensuring proper engine lubrication and protecting your valuable equipment from costly damage caused by low oil pressure. Proper oil pressure is essential for:
Lubricating moving parts – Crankshaft, camshaft, pistons, turbocharger
Cooling engine components – Oil carries heat away
Hydraulic lifters – Proper valve train operation
Turbocharger protection – Prevents bearing failure
Manufactured under ISO9001 certified processes, the COGENG 65.27441-7009 features a durable iron housing, premium rubber seals, and precision internal components to withstand the demanding environment of heavy equipment – constant vibration, temperature extremes (-40°C to +125°C), and exposure to engine oil and debris. Each unit undergoes 100% testing for accuracy, sealing integrity, and response time.
Why Choose COGENG 65.27441-7009?
| Feature | Benefit |
|---|---|
| ✅ Direct OEM Replacement | Plug-and-play for Doosan DL08 engine |
| ✅ High Accuracy | Reliable oil pressure readings for ECU/gauge |
| ✅ Durable Iron Construction | Withstands vibration, heat, and corrosion |
| ✅ Leak-Proof Design | Premium rubber O-ring pre-installed |
| ✅ Wide Temperature Range | -40°C to +125°C – all climate operation |
| ✅ Fast Response | <10 ms response time |
| ✅ In Stock | Ready to ship immediately |
| ✅ ISO9001 Certified | Consistent quality you can trust |
| Component Name | Quantity | Description |
|---|---|---|
| Engine Oil Pressure Sensor | 1 | Complete assembly, ready to install |
| Rubber O-ring / Sealing Ring | 1 | Pre-installed on threaded base |
| Protective Plastic Cap | 1 | For shipping protection only |
| Installation Quick Guide | 1 | Basic instructions |
The Doosan DL08 engine is used in a wide range of equipment. The 65.27441-7009 oil pressure sensor is compatible with the following applications:
| Model | Series | Engine | Typical Year Range |
|---|---|---|---|
| Doosan DX225LC-5 | Dash 5 | DL08 | 2008–2015 |
| Doosan DX225LC-7 | Dash 7 | DL08 | 2015–2020 |
| Doosan DX235LCR-5 | Dash 5 | DL08 | 2008–2015 |
| Doosan DX235LCR-7 | Dash 7 | DL08 | 2015–2020 |
| Doosan DX255LC-5 | Dash 5 | DL08 | 2008–2015 |
| Doosan DX255LC-7 | Dash 7 | DL08 | 2015–2020 |
| Doosan DX300LC-5 | Dash 5 | DL08 | 2008–2015 |
| Doosan DX300LC-7 | Dash 7 | DL08 | 2015–2020 |
| Model | Series | Engine | Typical Year Range |
|---|---|---|---|
| Doosan DL300-5 | Dash 5 | DL08 | 2010–2018 |
| Doosan DL350-5 | Dash 5 | DL08 | 2010–2018 |
| Doosan DL400-5 | Dash 5 | DL08 (high output) | 2010–2018 |
| Doosan DL420-5 | Dash 5 | DL08 | 2010–2018 |
| Model | Series | Engine | Typical Year Range |
|---|---|---|---|
| Doosan D160S-5 | Dash 5 | DL08 | 2010–2018 |
| Doosan D180S-5 | Dash 5 | DL08 | 2010–2018 |
| Doosan D200S-5 | Dash 5 | DL08 | 2010–2018 |
| Application | Engine | Typical Year Range |
|---|---|---|
| Doosan commercial trucks | DL08 | 2008–2018 |
| Doosan city / tour buses | DL08 | 2008–2018 |
Important: Always verify your engine model is DL08 before ordering. The DL06 (6.0L) uses a different sensor.
| Parameter | DL08 |
|---|---|
| Configuration | Inline 6-cylinder |
| Displacement | 8.0 liters (488 cubic inches) |
| Bore x Stroke | 115mm x 127mm |
| Aspiration | Turbocharged + Intercooled |
| Power range | 225–350 HP (165–257 kW) |
| Torque range | 620–950 lb-ft (840–1288 Nm) |
| Fuel system | Common rail direct injection |
| ECU | Doosan DL08 engine control unit |
| Oil capacity | 24–28 liters (depending on application) |
Normal Oil Pressure Ranges (DL08 Engine):
| Condition | Pressure (typical) | Warning threshold |
|---|---|---|
| Hot idle (700 RPM) | 15–25 PSI (1.0–1.7 bar) | Below 10 PSI |
| Cold idle | 40–60 PSI (2.8–4.1 bar) | N/A |
| Working RPM (1500–2000 RPM) | 40–70 PSI (2.8–4.8 bar) | Below 25 PSI |
| High load / full RPM | 50–80 PSI (3.5–5.5 bar) | Below 30 PSI |
| Brand | Part Number | Notes |
|---|---|---|
| COGENG | 65.27441-7009 | Direct replacement |
| Doosan (OEM) | 65.27441-7009 | Original equipment |
| Doosan (alternate) | 65.27441-7009A | Updated version (compatible) |
| Cross reference | 400513-00037 | Similar (verify) |
| Cross reference | 400513-00038 | Similar (verify) |
| Aftermarket | OP-9335 | May vary |
Note: Always match your original sensor part number. The "A" suffix indicates an updated revision that is fully compatible.
✅ Direct OEM replacement for:
Doosan part number: 65.27441-7009
Also compatible with: 65.27441-7009A (updated version)
✅ Designed for:
Doosan DL08 engine (8.0L 6-cylinder turbo diesel)
Doosan DX225LC-5 / DX225LC-7 excavators
Doosan DL300-5 / DL350-5 / DL400-5 wheel loaders
Doosan D160S-5 / D180S-5 / D200S-5 forklifts
Doosan commercial trucks and buses with DL08
✅ Electrical specifications:
Operating voltage: 5V DC (from ECU) or 12V/24V (gauge type)
Output signal: 0.5V – 4.5V analog (ECU type) or variable resistance (gauge type)
Connector: 2-pin or 3-pin Deutsch (match Doosan OEM)
✅ Mechanical specifications:
Thread size: 1/8-27 NPT (most common) or M10x1
Hex size: 22mm or 24mm
Pressure range: 0–150 PSI (0–10 bar) or 0–200 PSI (0–14 bar)
⚠️ Before purchasing, please verify:
| Check Item | Details |
|---|---|
| Engine model | Confirm your engine is DL08 (8.0L) – not DL06 (6.0L) |
| Part number | Match old sensor – 65.27441-7009 |
| Connector type | 2-pin or 3-pin (photo recommended) |
| Application | Oil pressure (engine block, near oil filter) |
| Output type | Analog voltage or variable resistance |
❌ NOT compatible with:
Doosan DL06 engine (6.0L) – different sensor part number
Doosan DL10 engine (10.0L) – different sensor
Older Doosan DX225LC-3 (DB58 engine) – different engine family
Non-Doosan engines (Cummins, Perkins, Isuzu, etc.)
Low-pressure applications (this is engine oil pressure, not hydraulic)
Tools Required:
| Tool | Purpose |
|---|---|
| 22mm or 24mm deep socket / wrench | Remove and install sensor |
| Torque wrench (recommended) | Achieve 15–20 Nm spec |
| Small flathead screwdriver | Release connector locking tab |
| Clean rag | Wipe mounting surface |
| Engine oil (clean) | Lubricate O-ring |
| Flashlight | Locate sensor (if hard to see) |
Installation Tips:
⚠️ Engine must be cool – hot oil can cause severe burns
🧹 Clean mounting surface – debris can prevent proper sealing
💧 Apply clean engine oil to O-ring before installation
🔧 Do NOT overtighten – sensor housing can crack at >30 Nm
🚫 Never use PTFE tape – can shred and clog oil passages
🔌 Listen for "click" when connecting electrical connector
🔍 After installation, idle engine for 2 minutes and inspect for leaks
📊 If oil pressure gauge reads incorrectly, check connector pins for corrosion
| Parameter | Value |
|---|---|
| Sensor Type | Piezoresistive / Thick-film ceramic |
| Pressure Range | 0 – 150 PSI (0 – 10 bar) |
| Maximum Overload | 200 PSI (13.8 bar) |
| Burst Pressure | 300 PSI (20.7 bar) |
| Output Signal (ECU type) | 0.5V – 4.5V analog (linear) |
| Output at 0 PSI | 0.5V (±0.1V) |
| Output at 150 PSI | 4.5V (±0.1V) |
| Output Signal (Gauge type) | 0–250 ohms variable resistance |
| Operating Voltage | 5V DC (ECU type) or 12V/24V (gauge type) |
| Current Consumption | <15 mA |
| Accuracy | ±2% full scale (typical) |
| Response Time | <10 ms |
| Operating Temperature | -40°C to +125°C |
| Storage Temperature | -50°C to +130°C |
| Temperature Compensation | 0°C to +100°C |
| Thread Size | 1/8-27 NPT (most common) or M10x1 |
| Hex Size | 22mm or 24mm |
| Housing Material | Zinc-plated iron |
| Diaphragm Material | Ceramic or Stainless steel |
| Seal Material | Nitrile rubber (NBR) or Viton/FKM |
| Connector Type | 2-pin or 3-pin Deutsch DT |
| Protection Class | IP67 (waterproof when mated) |
| Vibration Resistance | 10g (10–500 Hz) |
| ISO Standard | ISO9001:2015 certified facility |
| Country of Origin | China (Guangdong) |
| HS Code | 90262090 |
| Weight | Approx. 85g |
| Condition | Pressure (PSI) | Pressure (bar) | Action |
|---|---|---|---|
| Hot idle (700 RPM) | 15–25 | 1.0–1.7 | Normal |
| Hot idle low warning | Below 10 | Below 0.7 | Check oil level, sensor |
| Cold idle | 40–60 | 2.8–4.1 | Normal (thick oil) |
| Working RPM (1500) | 40–70 | 2.8–4.8 | Normal |
| Working RPM low | Below 25 | Below 1.7 | Check engine |
| Full load / high RPM | 50–80 | 3.5–5.5 | Normal |
| Full load low | Below 30 | Below 2.1 | Check oil pump, bearings |
| High pressure warning | Above 100 | Above 6.9 | Check relief valve |
If your sensor reads outside these ranges, verify with a mechanical gauge before replacing the sensor.
| Symptom | Possible Cause | Solution |
|---|---|---|
| No oil pressure reading (0 PSI) | Bad sensor, disconnected wire, no power | Check connector, measure voltage |
| Gauge pegged at maximum | Shorted signal wire (gauge type) | Inspect wiring harness |
| Warning light stays on | Low oil pressure OR bad sensor | Check actual pressure with mechanical gauge |
| Intermittent reading | Loose connector, damaged wire | Inspect and clean connector |
| Oil leak at sensor | Worn O-ring, over-tightened | Replace O-ring, reinstall with correct torque |
| Error code P0520 | Oil pressure sensor circuit | Test sensor output |
| Error code P0521 | Oil pressure range/performance | Check actual pressure, replace sensor |
| Error code P0522 | Low voltage | Check wiring, replace sensor |
| Error code P0523 | High voltage | Short in wiring, replace sensor |
| Pin | Function | Wire Color (Doosan typical) | Voltage/Signal |
|---|---|---|---|
| 1 | Power (5V) | Red or Yellow | 5V DC |
| 2 | Ground | Black or Brown | 0V |
| 3 | Signal output | Green or White | 0.5-4.5V |
Wiring Guide (2-Pin – Gauge Type):
| Pin | Function | Wire Color (typical) |
|---|---|---|
| 1 | Signal (to gauge) | White/Blue |
| 2 | Ground | Black |
Note: Pin configurations may vary. Verify with your Doosan wiring diagram or old sensor.
Testing the sensor (bench test – ECU type):
Apply 5V DC between Pin 1 (+) and Pin 2 (-)
Measure voltage between Pin 3 (signal) and Pin 2 (ground)
At 0 PSI (atmospheric): Should read ~0.5V
Apply pressure (with hand pump): Voltage should increase to ~4.5V at 150 PSI
Q1: What is the function of the 65.27441-7009 sensor on the Doosan DL08 engine?
A: This is an engine oil pressure sensor. It continuously monitors oil pressure in the DL08 engine and sends real-time signals to the ECU and/or dashboard gauge. This allows the ECU to:
Trigger warning lights if pressure drops too low
Derate or shut down engine to prevent damage
Log fault codes for diagnostics
Display oil pressure to the operator
Q2: What are the symptoms of a failing oil pressure sensor on a DL08 engine?
A: Common signs include:
Oil pressure warning light stays on or flashes (even with correct oil level)
Oil pressure gauge reads zero or maximum constantly
Intermittent warning light, especially when engine is hot
Engine derates or goes into "limp mode" (ECU protection)
Error codes: P0520, P0521, P0522, P0523 (oil pressure circuit)
Engine knocking or ticking (actual low oil pressure not detected)
No oil pressure reading on display
Q3: Is this a genuine Doosan OEM part?
A: No. This is a COGENG aftermarket replacement manufactured to meet or exceed OEM specifications. It is a direct replacement for Doosan part number 65.27441-7009.
Q4: What is the difference between 65.27441-7009 and 65.27441-7009A?
A: The "A" suffix indicates a minor revision (updated manufacturing process, improved seal, or different connector). Both are fully interchangeable. COGENG sensors meet the specifications of both versions.
Q5: Will this sensor fit my Doosan DX225LC-5 excavator?
A: Yes – the DX225LC-5 uses the DL08 engine and this sensor is a direct fit.
Q6: Will this sensor fit my Doosan DL300-5 wheel loader?
A: Yes – the DL300-5 uses the DL08 engine and this sensor is a direct fit.
Q7: Will this sensor work on a DL06 engine?
A: No – the DL06 engine uses a different sensor (different part number). This sensor is specifically for the DL08 engine.
Q8: What is the pressure range of this sensor?
A: The sensor measures from 0–150 PSI (0–10 bar) , covering the full operating range of the DL08 engine (normal operating pressure is 40–80 PSI at working RPM).
Q9: What is the output signal type?
A: This depends on your specific DL08 application:
ECU-controlled engines: 0.5V – 4.5V analog signal
Gauge-only applications: Variable resistance (typically 0–250 ohms)
Verify your application before ordering.
Q10: Is this sensor in stock for immediate shipping?
A: Yes – COGENG maintains stock of 500+ units. Orders ship within 24–48 hours.
Q11: What is the warranty?
A: COGENG provides a 6-month warranty against manufacturing defects.
Q12: How long does shipping take?
A:
Express (DHL/FedEx/UPS/TNT): 3–7 business days worldwide
Air freight: 7–12 days
Sea freight: 20–40 days
Q13: Do I need any special tools to install this sensor?
A: No. A standard 22mm or 24mm wrench is all you need.
Q14: Do I need to use thread sealant?
A: No – the rubber O-ring provides the oil seal. Never use PTFE tape – it can clog oil passages.
Q15: Can I install this sensor myself?
A: Yes, with basic mechanical skills (15–20 minutes). If uncomfortable, professional installation is recommended.
Q16: How do I place a trial order?
A: Contact your COGENG distributor directly. MOQ is 1 piece for trial orders – we welcome first-time buyers.
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